pg_controldata

Name

pg_controldata -- display control
information of a PostgreSQL
database cluster

Synopsis

pg_controldata [datadir]

Description

pg_controldata prints information
initialized during initdb, such as the
catalog version. It also shows information about write-ahead
logging and checkpoint processing. This information is
cluster-wide, and not specific to any one database.

This utility can only be run by the user who initialized the
cluster because it requires read access to the data directory.
You can specify the data directory on the command line, or use
the environment variable PGDATA.